the area of trapezium is 540 cm if the ratio of parallel side is 7 :5 and the distance between them is 18 cm find the length of the parallel side
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Step-by-step explanation:
Let the parallel sides be 7x and 5x respectively.
Area of trapezium = 1/2 × (b1+b2) × 18
=> 540 cm2 = 1/2 × (7x + 5x) × 18
=> 540 × 2 = 12x × 18
=> 1080 cm2 = 216x
Therefore, x = 1080/216
= 5 cm
1st side = 7x
= 7 × 5 cm
= 35 cm
2nd side = 5x
= 5 × 5 cm
= 25 cm
Hope it helps :)
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